Full
Outline
This study investigated the interaction between pectin and cyanidin-3-glucoside (C3G), as well as its impact on the gastrointestinal stability of C3G, using high-ester and low-ester pectin from different sources. Experimental results on aggregation and binding behavior indicated that low-ester pectin was less prone to aggregate formation and contained abundant free carboxyl groups, primarily binding to C3G through strong electrostatic interactions. The binding rate of C3G with low-ester pectin was significantly higher than that of high-ester pectin, which relied predominantly on hydrogen bonds. Among the samples, low-ester citrus pectin exhibited the highest binding rate, reaching 66.80%. Physicochemical analysis revealed that low-ester pectin formed a composite with C3G characterized by smaller particle size, more negative zeta potential, and a denser, more uniform structure, with C3G effectively encapsulated within the pectin network. In contrast, high-ester pectin primarily formed loose aggregates by adsorbing C3G onto its surface. In vitro gastrointestinal digestion simulations revealed that the low-ester pectin-C3G complex exhibited high stability. After intestinal digestion, the total C3G content in low-ester citrus pectin-C3G group increased by 65.58% compared to the control group, significantly enhancing the gastrointestinal stability of C3G. In summary, low-ester pectin improves the gastrointestinal stability of C3G more effectively by binding and encapsulating it within the aggregated pectin structure through electrostatic interactions.
127
53
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
